Someone brought Ertalyte and Ertalyte TX to my attention as possible materials for pawls. The data sheet properties looked promising, so I bought a small quantity of each and made pawls. I tested these on the low speed tester, as before.

But the result was disappointing. Until I find a pawl design that is quiet enough that I can use metal, I am sticking with Delrin.
I am starting to wonder if my pawls are just too big. If that is the problem, then the new pawl design (April 11, 2011) is a step in the wrong direction.